And last night (Jan. 31) in Melbourne, Australia Weezer frontman Rivers Cuomo joined the Foos onstage to cover the KISS classic “Detroit Rock City,” which was originally featured on the 1976 KISS album Destroyer.

Demonstrating his devotion, Cuomo belted out lead vocals and Foo Fighters happily provided the energized soundtrack, including the infamous twin guitar solo harmony.

The two bands are wrapping up a tour of Australia and New Zealand. The final date is February 3 in Auckland, New Zealand.